ci/ci: enable ptest-pkgs image features

Adding "ptest-pkgs" to IMAGE_FEATURES causes all -ptest packages
to be additionally installed.
To exercise the installed unit testing, we simply run ptest-runner.

Signed-off-by: Jose Quaresma <jose.quaresma@oss.qualcomm.com>

Author: quaresmajose

ci/ci.yml

@@ -8,5 +8,6 @@ header:
 local_conf_header:
   ci: |
     BB_SIGNATURE_HANDLER = "OEBasicHash"
+    EXTRA_IMAGE_FEATURES += "ptest-pkgs"
     FIRMWARE_COMPRESSION:qcom-armv8a = "zst"
     INHERIT:remove = "rm_work"